Fix usb_cdc on rp2350 (#367) #174

Job	Run time
Build Website	19s
Build (ubuntu-latest)	39s
Build (windows-latest)	2m 10s
Dry Run Packaging	2m 15s
Build (macos-latest)	38s
Check that stm32 generated code is up to date	39s
Build Examples (espressif/esp)	2m 9s
Unit Test Ports (ubuntu-latest, gigadevice/gd32)	14s
Build Examples (gigadevice/gd32)	2m 16s
Unit Test Regz (ubuntu-latest)	18s
Unit Test UF2 (ubuntu-latest)	16s
Unit Test Ports (ubuntu-latest, raspberrypi/rp2xxx)	31s
Build Examples (microchip/avr)	2m 12s
Unit Test Regz (windows-latest)	1m 37s
Unit Test UF2 (windows-latest)	57s
Unit Test Ports (ubuntu-latest, stmicro/stm32)	21s
Build Examples (microchip/atsam)	2m 3s
Unit Test Regz (macos-latest)	44s
Unit Test UF2 (macos-latest)	27s
Unit Test Ports (windows-latest, gigadevice/gd32)	1m 53s
Build Examples (nordic/nrf5x)	1m 53s
Unit Test Ports (windows-latest, raspberrypi/rp2xxx)	1m 44s
Build Examples (nxp/lpc)	2m 0s
Unit Test Ports (windows-latest, stmicro/stm32)	1m 38s
Build Examples (stmicro/stm32)	27s
Unit Test Ports (macos-latest, gigadevice/gd32)	30s
Build Examples (raspberrypi/rp2xxx)	2m 30s
Unit Test Ports (macos-latest, raspberrypi/rp2xxx)	49s
Build Examples (wch/ch32v)	2m 11s
Unit Test Ports (macos-latest, stmicro/stm32)	30s
	36m 50s

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